예제 #1
0
static void start_sending(void * dummy)
{
	/* set clk to Z and data to 0 */
	clk_Z();
	data_0();
	set_falling_edge();
#ifdef CONFIG_MODULE_MF2_CLIENT_USE_SCHEDULER
	sched_event = scheduler_add_single_event(watchdog_timeout, 
							   NULL, WATCHDOG_TIMEOUT/SCHEDULER_UNIT);
#endif
}
예제 #2
0
void recv(void)
{
	uint8_t i;
	uint16_t c=0;
	uint16_t d=0;
	data_Z();
	clk_Z();
	if (read_data())
		printf("burp\r\n");
/* 	wait_4cyc(WAIT_KBD_CYCLE4); */
/* 	wait_4cyc(WAIT_KBD_CYCLE4); */
/* 	wait_4cyc(WAIT_KBD_CYCLE4); */
	clk_0();
	wait_4cyc(WAIT_KBD_CYCLE4);
	
	
	for (i=0; i<8 ; i++) {
		if (read_data()) 
			c |= 1 << i;
		clk_Z();
		wait_4cyc(WAIT_KBD_CYCLE4);
		if (read_data()) 
			d |= 1 << i;
		clk_0();
		wait_4cyc(WAIT_KBD_CYCLE4);
	}

	// parite
	clk_Z();
	wait_4cyc(WAIT_KBD_CYCLE4);
	clk_0();
	wait_4cyc(WAIT_KBD_CYCLE4);

	// ack
	clk_Z();
	data_0();
	wait_4cyc(WAIT_KBD_CYCLE4);
	clk_0();
	wait_4cyc(WAIT_KBD_CYCLE4);

	// stop
	clk_Z();
	data_Z();
	wait_4cyc(WAIT_KBD_CYCLE4);
	clk_0();
	wait_4cyc(WAIT_KBD_CYCLE4);
	clk_Z();
	
	printf("%x\r\n", c);
	printf("%x\r\n", d);
	wait_4cyc(2*WAIT_KBD_CYCLE4);
	while(1);
}
예제 #3
0
void mf2_server_timer_cb(void)
{
/* 	static uint16_t i=0; */
	static uint16_t t;

	/* if it is just polling */
	if (mf2_state == MF2_SERVER_STATE_READY) {
		clk_Z();
		data_Z();

		/* the central server has something to say */
		if (read_clk() && !read_data()) {
			mf2_state = MF2_SERVER_STATE_RECV;
			mf2_step = 1;
			timer1A_register_OC_intr_at_tics(mf2_server_timer_cb, timer1_get()+MF2_SERVER_CLK_HALF_PERIOD);
			//			recv();
			dump();
			return;
		}	
		/* nothing to do if the central server has nothing to say */
		else {
			/* reload timer */
			timer1A_register_OC_intr_at_tics(mf2_server_timer_cb, timer1_get()+MF2_SERVER_READ_POLL_PERIOD);
			return;
		}
	}

	/* an operation is running */

	/* reload timer */
	timer1A_register_OC_intr_at_tics(mf2_server_timer_cb, timer1_get()+MF2_SERVER_CLK_HALF_PERIOD);

	/* XXX we should check if clk is 0 when clk_Z() */
	if (mf2_state == MF2_SERVER_STATE_RECV) {
		switch(mf2_step) {
		case 1:
			mf2_data_recv=0;
			dump();
			clk_0();
			break;
		case 2:
			dump();
			clk_Z();
			break;

		case 3:
		case 5:
		case 7:
		case 9:
		case 11:
		case 13:
		case 15:
		case 17:
			//			t = timer1_get();
			dump();
			clk_0();
			if(read_data())
				mf2_data_recv |= (1 << ( (mf2_step-3)/2 ) );
			break;
		case 4:
		case 6:
		case 8:
		case 10:
		case 12:
		case 14:
		case 16:
		case 18:
/* 			printf("%d\n", 	timer1_get() - t); */
/* 			while(1); */
			dump();
			clk_Z();
			break;

		case 19:
			/* parity */
			dump();
			clk_0();
			break;
		case 20:
			dump();
			clk_Z();
			data_0();
			break;
		case 21:
			dump();
			clk_0();
			break;
		case 22:
			dump();
			clk_Z();
			data_Z();
			break;

		default:
			if (rx_event) {
/* 				c=check_rx_buf(rx_buf); */
				rx_event((char)(mf2_data_recv));
/* 				rx_event((char)(0xED)); */
			}
			mf2_state = MF2_SERVER_STATE_READY; 
			mf2_step = 0;
			timer1A_register_OC_intr_at_tics(mf2_server_timer_cb, timer1_get()+MF2_SERVER_READ_POLL_PERIOD);
			return;
		}
		mf2_step++;
	}
	else {
		switch(mf2_step) {
		case 1:
			data_0();
			break;
		case 2:
			clk_0();
			break;
		case 3:
		case 5:
		case 7:
		case 9:
		case 11:
		case 13:
		case 15:
		case 17:
			if(mf2_data_send & (1<<((mf2_step-3)/2))) {
				data_Z();
				mf2_parity_cpt ++;
			}
			else {
				data_0();
			}
			clk_Z();
			break;
		case 4:
		case 6:
		case 8:
		case 10:
		case 12:
		case 14:
		case 16:
		case 18:
			/* XXX */
			if(!(read_clk())) {
/* 				/\* 			recv(); *\/ */
/* 							printf("Ceci est un test\n"); */
/* 							printf("%d\n", mf2_step); */
/* 							printf("%2.2x\n", mf2_data_send); */
/* 							while(1); */
				mf2_step=0;
				mf2_state = MF2_SERVER_STATE_RECV;
				
			}
			clk_0();
			break;

		case 19:
			if(!(mf2_parity_cpt%2))
				data_Z();
			else
				data_0();
			clk_Z();
			break;
		case 20:
			clk_0();
			break;
		case 21:
			clk_Z();
			data_Z();
			break;
		case 22:
			clk_0();
			break;
		case 23:
			clk_Z();
			break;
		case 24:
		case 25:
			break;
		default:
			mf2_state = MF2_SERVER_STATE_READY;
			mf2_step = 0;
			timer1A_register_OC_intr_at_tics(mf2_server_timer_cb, timer1_get()+MF2_SERVER_READ_POLL_PERIOD);
			return;
		}
		mf2_step++;
	}
}